Pipe-wrench



(No Model.)

F. G. SAWHILL.

PIPE WRENCH.

Patented June 7, 1887.

MXW

IN VEJVTOR f WITNESSES UNITED STATES PATENT OFFICE.

FRANK G. SAWHILL, OF MIDWAY, PENNSYLVANIA.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 364,549, dated June 7 1887.

Application filed August 25, 1886. Serial No. 211,836. (No model.)

To all whom it may concern:

Be it known that I, FRANK O. SAWHILL, of Midway, in thecouuty of Washington and State of Pemisylvania,have invented certain reference being had to the accompanying drawings, which form a part of this specification,and in which I V Figure 1 is a perspective view of my improved pipe-tongs. Fig. 2 is a horizontal longitudinal section of the same, and Fig. 3 is a detail view showing a modified form of the detachable shoe.

Like letters of reference indicate corresponding parts throughout the figures.

My invention has relation to pipe-tongs; and it consists in the improved construction and combination of parts constituting the same, as will be hereinafter fully set forth.

In the accompanying drawings, A represents the hooked jaw or book, which is pivoted at the end of its shank to the handle B To said handle is fulcrumed at its bend the bent lever C, between corresponding opposite lips, D.

v To said lever, near its inner end, is rigidly secured a doubly-bifurcated arm, E, the forks of one end furnishing means for securing said arm to the lever. The forks at the other end embrace the shank of the hook and have a bolt, F, passed through them and through a slot, G, formed in said shank. A cap or replaceable shoe, H, is secured upon the inner end of the lever. This shoe consists of a piece of hardened steel provided with a cylindrically-convex fluted face and two parallel arms, which furnish means for attaching the same to said lever. Said shoe is secured to the lever by placing one arm upon the inner edge of the lever and the other upon the outer. The inher arm fits intoa seat formed between the This form of shoe renders it into play when the tongs are used upon small pipes, and the other one, J, when the same tongs are used upon large pipes.

A set-screw, K, is secured in a socket in the lever, and is adapted to bear against the end of the hook s shank, so that by tightening said screw the tongs may be permanently gripped upon the pipe.

A pair of ton-gs, as above described,will grip and firmly hold a very small size of pipe, and will do likewise on as large a pipe as can be passed between the point of the hook and the face of the shoe. (See the two positions indicated by dotted and full lines in Fig. 2.)

Having thus fully described my invention, I claim-- 1. The combination of a handle, a hook pivoted by the end of its shank to the endof the handle, and a lever fulcrumed upon said handle and connected to said hook, substantially as shown and described.

2. The combination of a handle, a hook pivoted to the handle, a lever fulcrumed upon said handle, and an arm rigidly attached to said lever, and movably attached'to the shank of the hook, as set forth.

3. In a pair of pipe-tongs, the combination, with the handle and pivoted lever, of a hook provided with a slot in its shank, an arm bifurcated at both ends, and a bolt passed through the forks upon one end of said arm and the slot in said shank, as shown and described.

4. The combination, with a pair of pipetongs consisting of a handle, a 'hook, a lever, and a bifurcated arm, of a shoe formed with two parallel arms, one to be secured between the forks of said bifurcated arm and the lever, and the other by a screw turned into said lever, as set forth.

5. In a pair of pipe-tongs consisting of a handle,a hook pivoted to said handle,a crooked leverfulcrumed to the handle, and an arm connecting the hook and the lever, the combination, with the lever, of a setscrew, substantially as and for the purpose specified.

In testimony thatlclaim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

FRANK O. SAWHILL.

Witnesses:

ALBERT A. HEINER, CHAs. E. PORTER. 

